The first mortgages and other loans payable collateralized by the respective properties and assignment of leases at March 31, 2013 and December 31, 2012, respectively, were as follows (amounts in thousands):

Property	Maturity Date	Interest Rate(1)		March 31, 2013		December 31, 2012
220 East 42nd Street	11/2013	5.25	%	$	184,698	$	185,906
609 Partners, LLC(2)	07/2014	5.00	%	23		23
125 Park Avenue	10/2014	5.75	%	146,250		146,250
711 Third Avenue	06/2015	4.99	%	120,000		120,000
625 Madison Avenue	11/2015	7.22	%	124,481		125,603
500 West Putnam	01/2016	5.52	%	23,930		24,060
420 Lexington Avenue	09/2016	7.50	%	184,612		184,992
Landmark Square	12/2016	4.00	%	84,097		84,486
485 Lexington Avenue	02/2017	5.61	%	450,000		450,000
120 West 45th Street	02/2017	6.12	%	170,000		170,000
300 Main Street	02/2017	5.75	%	11,500		11,500
762 Madison Avenue	02/2017	3.75	%	8,331		8,371
2 Herald Square	04/2017	5.36	%	191,250		191,250
885 Third Avenue	07/2017	6.26	%	267,650		267,650
Other loan payable(3)	09/2019	8.00	%	50,000		50,000
One Madison Avenue	05/2020	5.91	%	602,584		607,678
100 Church	07/2022	4.68	%	230,000		230,000
919 Third Avenue(4)	06/2023	5.12	%	500,000		500,000
400 East 57th Street	02/2024	4.13	%	70,000		70,000
400 East 58th Street	02/2024	4.13	%	30,000		30,000
1515 Broadway(5)	03/2025	3.93	%	900,000		—
Total fixed rate debt				$	4,349,406	$	3,457,769
Master repurchase(6)	09/2013	3.21	%	$	174,966	$	116,667
180 Maiden Lane(7)	11/2016	2.41	%	269,113		271,215
248-252 Bedford Avenue	03/2018	2.46	%	22,000		—
1515 Broadway(5)	—	—		—		769,813
Total floating rate debt				$	466,079	$	1,157,695
Total mortgages and other loans payable				$	4,815,485	$	4,615,464

(1) Effective weighted average interest rate for the three months ended March 31, 2013, taking into account interest rate hedges in effect during the period.

(2) As part of an acquisition, the Operating Partnership issued 63.9 million units of our 5.0% Series E preferred units, or the Series E units, with a liquidation preference of $1.00 per unit. As of March 31, 2013, 63.8 million Series E units had been redeemed.

(3) This loan is secured by a portion of a preferred equity investment.

(4) We own a 51% controlling interest in the joint venture that is the borrower on this loan. This loan is non-recourse to us.

(5) We have consolidated this investment since we acquired the remaining interest in this joint venture in April 2011. In April 2012, we refinanced the $447.2 million mortgage that was due in December 2014 with a $775.0 million seven-year mortgage, which carried interest at the rate equal to the greater of (a) 285 basis points over 90-day LIBOR or (b) 3.6% per annum. In February 2013, we refinanced the $775.0 million mortgage with a new $900.0 million 12-year mortgage, which carries a rate of interest of 3.93% per annum and realized a net loss on early extinguishment of debt of approximately $18.5 million, including a prepayment penalty of $7.6 million.

(6) In September 2012, we entered into a Master Repurchase Agreement, or MRA, with a financial institution, with a maximum facility capacity of $175.0 million, under which we agreed to sell certain debt investments in exchange for cash with a simultaneous agreement to repurchase the same debt investments at a certain date or on demand. The MRA’s interest rate is based on 1-month LIBOR plus 300 basis points. The MRA matures in September 2013, and has a one-year extension option.

(7) In connection with this consolidated joint venture obligation, we executed a master lease agreement. Our partner has executed a contribution agreement to reflect its pro rata share of the obligation under the master lease.